/* =================================================================
   DRACARYS — sistema visual
   Paleta: vacío casi negro + gradiente de brasa (rojo profundo → naranja)
   Tipografía: Big Shoulders Display (marca) + Inter (interfaz)
   ================================================================= */

:root {
  --void:        #09090b;
  --surface:     #121014;
  --surface-2:   #18151a;
  --line:        rgba(255, 255, 255, 0.07);
  --glass:       rgba(255, 255, 255, 0.045);
  --glass-strong:rgba(20, 14, 14, 0.55);

  --ink:         #ece7e0;
  --ink-dim:     #a29d9a;
  --ink-faint:   #635f61;

  --ember-1:     #ff8a3d; /* amber */
  --ember-2:     #ff4d1c; /* core */
  --ember-3:     #c4190c; /* deep red */
  --ember-4:     #4a0c08; /* smoulder */

  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 26px;

  --ease: cubic-bezier(.22, .8, .3, 1);
}

* { box-sizing: border-box; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

html, body {
  height: 100%;
  margin: 0;
  background: var(--void);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}

body {
  min-height: 100dvh;
  padding-bottom: calc(96px + env(safe-area-inset-bottom));
  position: relative;
}

::selection { background: var(--ember-2); color: #120705; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }

/* ---------- Fondo: brasas difusas en movimiento lento ---------- */
.scene {
  position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none;
}
.ember {
  position: absolute;
  width: 60vmax; height: 60vmax;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.28;
}
.ember--a {
  top: -22vmax; left: -18vmax;
  background: radial-gradient(circle, var(--ember-2), transparent 70%);
  animation: drift1 26s ease-in-out infinite;
}
.ember--b {
  bottom: -26vmax; right: -20vmax;
  background: radial-gradient(circle, var(--ember-3), transparent 70%);
  animation: drift2 32s ease-in-out infinite;
}
@keyframes drift1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(4vmax, 6vmax) scale(1.08); }
}
@keyframes drift2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(-5vmax, -4vmax) scale(1.05); }
}

/* ---------- Cabecera ---------- */
.topbar {
  position: relative; z-index: 1;
  padding: 34px 22px 18px;
}
.wordmark {
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 900;
  font-size: clamp(40px, 12vw, 56px);
  letter-spacing: 0.5px;
  line-height: 0.9;
  text-transform: none;
}
.wordmark__d {
  background: linear-gradient(160deg, var(--ember-1), var(--ember-2) 55%, var(--ember-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.topbar__meta {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--ink-faint);
}

/* ---------- Lista de pistas ---------- */
.library {
  position: relative; z-index: 1;
  padding: 4px 14px 20px;
  max-width: 640px;
  margin: 0 auto;
}

.track-list { list-style: none; margin: 0; padding: 0; }

.track {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 10px;
  border-radius: var(--radius-m);
  transition: background 0.25s var(--ease);
}
.track:active { background: var(--glass); }

.track__play {
  width: 40px; height: 40px;
  flex: 0 0 auto;
  display: grid; place-items: center;
  border-radius: 10px;
  color: var(--ink-dim);
}

.track__index {
  font-variant-numeric: tabular-nums;
  font-size: 14px;
}

.track__eq { display: none; align-items: flex-end; gap: 2.5px; height: 16px; }
.track__eq i {
  width: 3px; background: var(--ember-2); border-radius: 2px;
  animation: eq 0.9s ease-in-out infinite;
}
.track__eq i:nth-child(1) { animation-delay: -0.6s; }
.track__eq i:nth-child(2) { animation-delay: -0.2s; }
.track__eq i:nth-child(3) { animation-delay: -0.8s; }
.track__eq i:nth-child(4) { animation-delay: -0.4s; }
@keyframes eq {
  0%, 100% { height: 3px; }
  50%      { height: 15px; }
}

.track__info {
  flex: 1 1 auto;
  min-width: 0;
  display: flex; flex-direction: column; gap: 2px;
}
.track__title {
  font-size: 15.5px; font-weight: 500;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.track__file {
  font-size: 12px; color: var(--ink-faint);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.track__download {
  flex: 0 0 auto;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 50%;
  color: var(--ink-faint);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.track__download:hover { color: var(--ember-1); background: var(--glass); }

.track.is-active .track__title { color: var(--ember-1); }
.track.is-active .track__play { color: var(--ember-2); }
.track.is-active .track__index { display: none; }
.track.is-active .track__eq { display: inline-flex; }

.empty-state {
  margin-top: 60px;
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
  background: var(--glass);
}
.empty-state__title { font-size: 17px; margin: 0 0 8px; }
.empty-state__body { margin: 0; color: var(--ink-dim); font-size: 14px; line-height: 1.6; }
.empty-state code {
  background: var(--surface-2); padding: 2px 6px; border-radius: 6px; font-size: 12.5px;
}

/* ---------- Mini reproductor (barra inferior) ---------- */
.player {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  padding: 8px 12px calc(10px + env(safe-area-inset-bottom));
  background: var(--glass-strong);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  border-top: 1px solid var(--line);
  transform: translateY(0);
  transition: transform 0.35s var(--ease);
}
.player[aria-hidden="true"] { transform: translateY(4px); }

.player__scrub { padding: 0 2px 6px; }
.player__scrub input[type="range"] { height: 3px; }

.player__row {
  display: flex; align-items: center; gap: 12px;
}

.player__art {
  width: 42px; height: 42px; flex: 0 0 auto;
  border-radius: 10px;
  background: linear-gradient(160deg, var(--ember-1), var(--ember-3));
  display: grid; place-items: center;
  overflow: hidden;
  position: relative;
}
.player__art-flame {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.55), transparent 55%);
  mix-blend-mode: overlay;
}

.player__meta { flex: 1 1 auto; min-width: 0; }
.player__title {
  margin: 0; font-size: 14px; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.player__sub {
  margin: 1px 0 0; font-size: 12px; color: var(--ink-faint);
}

.player__controls { display: flex; align-items: center; gap: 4px; }

.ctrl {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 50%;
  color: var(--ink);
  transition: transform 0.15s var(--ease), background 0.2s var(--ease);
}
.ctrl:active { transform: scale(0.9); }
.ctrl--main {
  width: 44px; height: 44px;
  background: linear-gradient(160deg, var(--ember-1), var(--ember-2));
  color: #17090a;
}

/* ---------- Barra de progreso (compartida) ---------- */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  background: transparent;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--ember-2) var(--fill, 0%), var(--line) 0);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px; height: 12px; margin-top: -4.5px;
  border-radius: 50%;
  background: var(--ember-1);
  box-shadow: 0 0 0 4px rgba(255, 138, 61, 0.18);
}
input[type="range"]::-moz-range-track {
  height: 3px; border-radius: 3px; background: var(--line);
}
input[type="range"]::-moz-range-progress {
  height: 3px; border-radius: 3px; background: var(--ember-2);
}
input[type="range"]::-moz-range-thumb {
  width: 12px; height: 12px; border: 0; border-radius: 50%; background: var(--ember-1);
}

/* ---------- Reproductor a pantalla completa ---------- */
.fullplayer {
  position: fixed; inset: 0; z-index: 30;
  background: radial-gradient(120% 90% at 50% -10%, #241012 0%, var(--void) 62%);
  display: flex; flex-direction: column;
  padding: calc(20px + env(safe-area-inset-top)) 22px calc(28px + env(safe-area-inset-bottom));
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.45s var(--ease), opacity 0.35s var(--ease);
  pointer-events: none;
}
.fullplayer.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.fullplayer__close {
  align-self: flex-end;
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 50%;
  color: var(--ink-dim);
}

.fullplayer__art {
  flex: 1 1 auto;
  display: grid; place-items: center;
  min-height: 0;
  padding: 10px 0 26px;
}
.fullplayer__flame {
  width: min(72vw, 300px);
  aspect-ratio: 1;
  border-radius: 32px;
  background:
    radial-gradient(circle at 32% 26%, rgba(255,255,255,0.35), transparent 45%),
    conic-gradient(from 210deg, var(--ember-4), var(--ember-3), var(--ember-2), var(--ember-1), var(--ember-3), var(--ember-4));
  box-shadow: 0 30px 80px -20px rgba(255, 77, 28, 0.45);
  animation: swirl 14s linear infinite;
}
.fullplayer__flame.is-playing { animation-play-state: running; }
@keyframes swirl {
  to { filter: hue-rotate(18deg); transform: rotate(1turn); }
}

.fullplayer__body { flex: 0 0 auto; }
.fullplayer__eyebrow {
  margin: 0 0 6px; font-size: 12.5px; color: var(--ink-faint);
}
.fullplayer__title {
  margin: 0;
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 800;
  font-size: clamp(28px, 8vw, 38px);
  line-height: 1.05;
}
.fullplayer__sub {
  margin: 6px 0 22px; color: var(--ink-dim); font-size: 14px;
}

.fullplayer__scrub input { margin-bottom: 6px; }
.fullplayer__times {
  display: flex; justify-content: space-between;
  font-size: 11.5px; color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.fullplayer__controls {
  display: flex; align-items: center; justify-content: center; gap: 26px;
  margin: 22px 0 26px;
}
.ctrl--ghost { color: var(--ink-dim); }
.ctrl--hero {
  width: 66px; height: 66px;
  background: linear-gradient(160deg, var(--ember-1), var(--ember-2));
  color: #17090a;
  box-shadow: 0 14px 30px -10px rgba(255, 77, 28, 0.55);
}

.fullplayer__download {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin: 0 auto;
  width: fit-content;
  padding: 11px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--glass);
  font-size: 13.5px;
  color: var(--ink-dim);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.fullplayer__download:hover { color: var(--ember-1); border-color: var(--ember-3); }

@media (min-width: 720px) {
  .library { padding-top: 8px; }
  .fullplayer__body { max-width: 460px; margin: 0 auto; width: 100%; }
  .fullplayer__art { padding-bottom: 30px; }
}